Failed test bind_ipv4_ipv6::case_2

[amakeenk]

OS: ALT Regular x86_64
rust version: 1.75.0
miniserve version: 0.25.0

Steps to reproduce:
$ RUST_BACKTRACE=full cargo test --test bind

Result:

running 13 tests
test bind_fails::case_1 ... ok
test bind_fails::case_2 ... ok
test bind_ipv4_ipv6::case_1 ... ok
test validate_printed_urls::case_1 ... ok
test validate_printed_urls::case_2 ... ok
test validate_printed_urls::case_3 ... ok
test validate_printed_urls::case_4 ... ok
test bind_ipv4_ipv6::case_3 ... ok
test bind_ipv4_ipv6::case_4 ... ok
test validate_printed_urls::case_5 ... ok
test validate_printed_urls::case_6 ... ok
test validate_printed_urls::case_7 ... ok
test bind_ipv4_ipv6::case_2 ... FAILED

failures:

---- bind_ipv4_ipv6::case_2 stdout ----
thread 'bind_ipv4_ipv6::case_2' panicked at tests/fixtures/mod.rs:152:13:
timeout waiting for port 35257
stack backtrace:
   0:     0x55792858ee8c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h4115c290c944b935
   1:     0x5579285abdcd - core::fmt::write::hd184e5699806b34c
   2:     0x55792856f50f - std::io::Write::write_fmt::hbef719a5f4cbfd4c
   3:     0x55792858ec72 - std::sys_common::backtrace::print::heff2358bb8b6d2d1
   4:     0x5579285914a5 - std::panicking::default_hook::{{closure}}::h5651721bac752c02
   5:     0x5579285911c7 - std::panicking::default_hook::h531ccdfc928a8628
   6:     0x557927be2197 - test::test_main::{{closure}}::ha304499cabe8e82c
   7:     0x557928591a4f - std::panicking::rust_panic_with_hook::h7524dc9b87702142
   8:     0x5579285917ae - std::panicking::begin_panic_handler::{{closure}}::hf713b86cf3c64e64
   9:     0x55792858f2c6 - std::sys_common::backtrace::__rust_end_short_backtrace::h54ef28bbeccade42
  10:     0x557928591512 - rust_begin_unwind
  11:     0x557927bb9c45 - core::panicking::panic_fmt::hf9a98c5547cf0437
  12:     0x557927bbf72b - bind::fixtures::wait_for_port::ha31cac8f3c451c09
                               at /home/amakeenk/gear/miniserve/tests/fixtures/mod.rs:152:13
  13:     0x557927bbe427 - bind::fixtures::server::hc1efb39a39dcaecd
                               at /home/amakeenk/gear/miniserve/tests/fixtures/mod.rs:112:5
  14:     0x557927bc8163 - bind::bind_ipv4_ipv6::case_2::hc7bdec9f5a13189c
                               at /home/amakeenk/gear/miniserve/tests/bind.rs:29:8
  15:     0x557927bbd1c7 - bind::bind_ipv4_ipv6::case_2::{{closure}}::h5262a1e6a081e9ad
                               at /home/amakeenk/gear/miniserve/tests/bind.rs:36:6
  16:     0x557927bc0756 - core::ops::function::FnOnce::call_once::ha8b12f5bed11de51
                               at /usr/src/RPM/BUILD/rust-1.75.0/library/core/src/ops/function.rs:250:5
  17:     0x557927be6c9f - test::__rust_begin_short_backtrace::h93e7afbacb40f5ec
  18:     0x557927be113e - test::types::RunnableTest::run::h324438ee0173adb7
  19:     0x557927be5d46 - test::run_test::{{closure}}::h37459229a8020335
  20:     0x557927bc9806 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee99b4f0a3935f39
  21:     0x557927bcfb37 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h826d0adc7cabf22b
  22:     0x557928594a05 - std::sys::unix::thread::Thread::new::thread_start::hee21f521fdcb4044
  23:     0x7f37bb89392b - <unknown>
  24:     0x7f37bb915cb8 - <unknown>
  25:                0x0 - <unknown>


failures:
    bind_ipv4_ipv6::case_2

test result: FAILED. 12 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.04s

Manual startup on the same port works correctly:

$ miniserve -p 35257 .
miniserve v0.25.0
Bound to [::]:35257, 0.0.0.0:35257

[svenstaro]

Might be a race condition when running the tests. Does it work if you rerun it a few times or if you run the tests single threaded?

[amakeenk]

Does not work in both cases.